over 6 spring ranges. Set point can be
adjusted easily with standard screwdriver.
Regulator top cap has the capability of
including the provision for a wire seal.

◊Under & Over Pressure Safety

◊Over Pressure Safety Slam-Shut

Slam-Shut Valve (UPCO/OPCO)
options available

Valve (OPCO) options available

◊Integral

slam-shut valves available to protect
against under (UPCO) and over pressure (OPCO)
conditions in the downstream pipe-work. Slamshut valves also available with low differential
pressure cut-off and thermal trip (T-type) protection feature to shut gas off if regulator is engulfed
in a fire.

◊¾”

threaded vent
connection protected
by screen that is easily
removed to attach
vent extender or ventline.

◊Pressure

test points available at
inlet & outlet chambers of the body,
as an option.

◊Reinforced

molded
diaphragm for increased speed of
response and durabil-

◊

Several available
orifice diameters to
accommodate a wide
range of pressure conditions and flow require-

with full capacity, limited
capacity, no capacity internal relief valve
designs to manage the capability of the
regulator to discharge over pressure gas.
Safety diaphragms also available.

o

◊Available with angle

(90 ) body with 1” x 1”
NPT, BSPT or BSPP
o

◊Cartridge style regulator diaphragm casing design

with union body connection so retrofitting new regulator casings is very easy without removing regulator
body from the pipe-work.

Atmospheric Pressure
Inlet Pressure
Outlet Pressure

◊Available

with Internal Impulse or
Control Line (I.C.L.) or External Impulse
or Control Line Connections (E.C.L.)

◊1” flanged connec-

tions available in ANSI150 or PN16 with flat
or raised face profiles

◊Available

with integrated union fitting
with o-ring seal for 100% bubble-tight seal
on both inlet or outlet body connections to
ease and reduce installation labor. Union
available in standard or insulated versions.

Please contact one of our representatives for more detailed information

Regulators for Indoor Installations without Requirement for Vent-Line
•

Please contact one of our representatives for more detailed information

Internal Safety Relief Valve (SRV) Description
•

•

•
•

The SRV is designed to monitor the pressure in the outlet chamber or downstream
of the regulator and to relieve by either venting gas leakages or full flow capacity
(depending on the device design) into the atmosphere in the event of an overpressure condition.
If the pressure in the measuring chamber exceeds the force of the set point spring
of the relief valve, the diaphragm rises and opens the relief valve. The gas then
flows from the outlet pressure line to atmosphere or another desired location.
The relief gas pressure and flow is discharged until the pressure is returned to the
predetermined safe level.
The safety relief pressure of the internal relief valve occurs slightly above the set
pressure of the main spring or outlet pressure

Safety Slam Shut Valve (SSV) Description
•
•
•

•
•
•
•

The SSV is designed to monitor the outlet pressure and to interrupt the gas flow, if
preset limits are exceeded.
This preset pressure is adjustable in the field.
If the measured pressure reaches the set point of the SSV, a release mechanism is
triggered and the SSV closes the valve on the inlet pressure side of the regulator.
This closing function completely blocks the forward movement of gas past the SSV.
Safety slam shut valves are available in over pressure cut off (OPCO) protection or
under and over pressure cut off (UPCO/OPCO) protection.
After the SSV is tripped, the condition that triggered the closing of the valve must be
addressed and then the SSV can be manually reset.
Thermal trip protection is also available as an option to shut the gas flow off, if the
safety slam shut valve is exposed to high temperatures or engulfed in a fire (T-Type).
Please contact one of our representatives for the technical brochure on all of our
safety slam shut valves.

14

MODEL 240 GAS PRESSURE REGULATOR
General Description
Commissioning and Installation Instructions
Please contact one of our representatives for the installation and commissioning instructions. Additionally, the commissioning and installation instructions are found in
each box that the equipment is shipped in and can be downloaded from the website.